ExpressZIP features all of the powerful ZIP tools you'll ever need in an easy to use and attractive interface and comes complete with built-in Wizards to walk you through creating ZIP and EXE (self extracting) archives.
NXPowerLite can reduce the size of your PowerPoint files by over 90%. It's fully customizable, allowing you to choose the ideal balance between compression and quality. This free, fully functional trial version will compress up to 10 presentations.
StuffIt Expander for Mac
StuffIt Expander 2010 is free and available for download. StuffIt Expander is your simple key to opening virtually every compressed or encoded file you download from the Internet or receive via email. Just drag, drop, and enjoy!
Unzip WinZip, WinRar, WinAce and 12 other types of archives as easy as 1-2-3! Browse your archives in a familiar Windows explorer-like interface, backup your important files to standard zip files with a single click and much more.
StuffIt for Mac
StuffIt compresses and expands archives. It provides super-strong encryption security and password protection. StuffIt's automatic archive repair abillities ensure your data's integrity over the long haul. Send and transfer via email or FTP!
StuffIt Deluxe for Mac
StuffIt Deluxe gives you the power to shrink your photos, music, and other documents without compromising quality. Enjoy access to StuffIt Connect, a file transfer and storage service. Securely store up to 2GB and share them via email invitations.